Types and characteristics of flotation machines

Flotation machine is the most important equipment in the process of flotation. In addition to the reagents, the technological process, the performance of the flotation machine has considerable influence on flotation effect. Flotation machine can be divided into: mechanical agitation type flotation machine, inflatable flotation machine, the hybrid flotation machine or air mixing type flotation machine, air- releasing flotation machine. (1) The mechanical agitation type flotation machine Pulp aeration and mixing is achieved by mechanical agitator. It belongs to the external air self-suction type flotation machine, pneumatic stirrer has similar suction characteristic of a pump, self-priming air and pulp. (2) Air mixing type flotation machine Aeration quantity is easy to adjust separately; less wear of mechanical stirrer; separation targets are better; Low power consumption. (3) Inflatable flotation machine Without mechanical agitator or drive component; Aerator inflatable, bubble size adjusted by the aerator’s structure; Bubble mixed with pulp; simple processing, high grade, suitable for roughing and scavenging; simple flotation column structure, small coverage, easy maintenance, easy operation, and saving power. (4) air- releasing flotation machine Mainly used for fine mineral flotation and de-oiling flotation of oily waste water. Froth flotation is an important concentration process. This process can be used to separate any two different particles and operated by the surface chemistry of the particles. In flotation, bubbles are introduced into a pulp and the bubbles rise through the pulp. In the process, hydrophobic particles become bound to the surface of the bubbles. The driving force for this attachment is the change in the surface free energy when the attachment occurs. These bubbles rise through the slurry and are collected from the surface. To enable these particles to attach, careful